Home / 20,855.82-31,283.73-5,273.44

Finding the Fourth Proportional to 20,855.82, 31,283.73 and 5,273.44

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Solution

The fourth proportional to 20,855.82, 31,283.73 and 5,273.44 is: 7,910.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,855.82 : 31,283.73 = 5,273.44 : x
  2. Step 2: Convert to fraction form
    20,855.82/31,283.73 = 5,273.44/x
  3. Step 3: Cross multiply
    20,855.82x = 31,283.73 × 5,273.44
  4. Step 4: Simplify right side
    20,855.82x = 164,972,873.13
  5. Step 5: Solve for x
    x = 164,972,873.13/20,855.82
  6. Step 6: Final answer
    x = 7,910.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.